Indirect structural health monitoring in bridges: Scale experiments

F. Cerda, J. Garrett, J. Bielak, J. Barrera, Z. Zhuang, S. Chen, M. McCann, J. Kovaćević, P. Rizzo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, we use a scale model to experimentally validate an indirect approach to bridge structural health monitoring (SHM). In contrast to a traditional direct monitoring approach with sensors placed on a bridge, the indirect approach uses instrumented vehicles to collect data about the bridge. Indirect monitoring could offer a mobile, sustainable, and economical complementary solution to the traditional direct bridge SHM approach. Acceleration signals were collected from a vehicle and bridge system in a laboratory-scale experiment for four different bridge scenarios and five speeds. These signals were classified using a simple short-time Fourier transform technique meant to detect shifts in the fundamental frequency of the bridge due to changes in the bridge condition. Results show near-perfect detection of changes when this technique is applied to signals collected from the bridge (direct monitoring), and promising levels of detection when one uses signals from sensors on the vehicle (indirect monitoring) instead of those recorded on the bridge itself.

Original languageEnglish (US)
Title of host publicationBridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management
Pages346-353
Number of pages8
StatePublished - 2012
Event6th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2012 - Stresa, Lake Maggiore, Italy
Duration: Jul 8 2012Jul 12 2012

Publication series

NameBridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management

Other

Other6th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2012
CountryItaly
CityStresa, Lake Maggiore
Period7/8/127/12/12

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Safety, Risk, Reliability and Quality

Fingerprint Dive into the research topics of 'Indirect structural health monitoring in bridges: Scale experiments'. Together they form a unique fingerprint.

  • Cite this

    Cerda, F., Garrett, J., Bielak, J., Barrera, J., Zhuang, Z., Chen, S., McCann, M., Kovaćević, J., & Rizzo, P. (2012). Indirect structural health monitoring in bridges: Scale experiments. In Bridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management (pp. 346-353). (Bridge Maintenance, Safety, Management, Resilience and Sustainability - Proceedings of the Sixth International Conference on Bridge Maintenance, Safety and Management).